Table 2 ICD-10 criteria for anxiety and associated questionnaire items

(1) Excessive concerns about the quality of one's performance in areas such as schoolwork, sports, and other regular activities.

(1) “My child worries about things working out for him/her“.

“My child had the idea that everything went wrong”.

“My child felt it was just as good as other people“.

“My child worries about being as good as other kids”.

„My child worries about how well he/she does things“.

“My child feels nervous when he/she is with other children or adults and he/she has to do something while they watch him/her (for example: read a loud, speak, play a game, play a sport)

“My child worries about going to school”.

“My child is scared to go to school”.

(2) Excessive concerns about physical health (despite an evident good health, or, if hurt or sick, concerns that go beyond a normal apprehension) or about being injured.

(2) “My child fells like he/she is going crazy when he/she gets frightened”.

“My child is afraid of having anxiety (or panic) attacks”.

(3) Excessive concerns or anticipatory worries in relation to particular non-health themes (money or financial well-being, punctuality, appearance, catastrophes, disasters, etc.).

(3) “My child has nightmares about something bad happening to his/her parents“

“My child worries about going to school.” “My child has nightmares about something bad happening to him/her“.

“My child worries that something bad might happen to his/her parents”.

„My child worries about what is going to happen in the future“.

„My child worries about things working out for him/her“.

(4) Free floating anxiety unrelated to specific situations.

(4) “My child worries about going to school”.

„My child worries about things working out for him/her“.

„My child is a worrier“.

“My child gets really frightened for no reason at all”.

„People tell me that my child worries too much“.

“My child is afraid of having anxiety (or panic) attacks”.

“My child worries about what is going to happen in the future”.

“My child is scared to go to school”.

„ My child worries about things that have already happened“.

“My child felt fearful.”

(5) A frequent need for reassurance that persists in spite of several appropriate attempts to reassure the child.

(5) „My child follows his/her mother/father wherever they go“.

“My child feels nervous with people he/she does not know well”.

„My child worries about things working out for him/her“.

“My child feels nervous when he/she is going to parties, dances, or any place where there will be people that he/she does not know well”.

(6) Marked feelings of tension, inability to relax or to concentrate, nervousness, difficulty getting to sleep, autonomic symptoms (such as palpitations, sweating, dry mouth, etc.).

(6) “When my child gets frightened, it is hard for him/her to breathe”.

“When my child gets frightened, he/she feels like passing out”.

“My child is nervous“.

“People tell me my child looks nervous“.

“When my child gets frightened, his/her heart beats fast”.

“When my child gets frightened, he/she gets shaky”.

“When my child gets frightened, he/she gets sweats a lot”.

“When my child gets frightened, he/she feels like he/she is choking”.

“When my child gets frightened, he/she feels like throwing up”.

“When my child gets frightened, he/she feels dizzy”.

“My child had trouble keeping his/her mind on what he/she was doing“.

“During the last month, my child was inattentive and distractible“.

(7) Recurrent somatic complaints (headaches, stomachaches, etc.) for which no physical basis can be demonstrated.

(7) “My child gets headaches when he/she is at school”.

“My child gets stomachs at school”.